Day, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.9 °C (low) to 26.7 °C (high). Annual precipitation averages 1373.1 Millimeters. Day is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.9 °C | 18.6 °C | 118.11 mm |
| February | 6.4 °C | 20.4 °C | 90.42 mm |
| March | 9.2 °C | 23.8 °C | 115.57 mm |
| April | 12.8 °C | 26.9 °C | 82.04 mm |
| May | 16.9 °C | 30.6 °C | 77.72 mm |
| June | 21.1 °C | 32.4 °C | 176.78 mm |
| July | 22.2 °C | 33.1 °C | 176.02 mm |
| August | 22.3 °C | 32.8 °C | 184.91 mm |
| September | 20.3 °C | 31.4 °C | 130.81 mm |
| October | 14.9 °C | 27.8 °C | 78.49 mm |
| November | 9.2 °C | 23.3 °C | 57.66 mm |
| December | 6.3 °C | 19.8 °C | 84.58 mm |
| Annual | 13.9 °C | 26.7 °C | 1373.11 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |